Purchase Seven Chakra Set with Printed Wood Gift Box. Chakra, also spelled Cakra, Sanskrit C?akra, (?wheel?), any of a number of psychic-energy centres of the body, prominent in the occult physiological practices of certain forms of Hinduism and Tantric Buddhism. While some crystals are said to alleviate stress, others purportedly improve concentration or creativity. Book your order today at Natural Agate.